The strongest supporters were the Antifederalists. Hope that helps out.
They were slave states that could've joined the Confederacy.
The answer is Card Stacking, hope this helps.
Answer:A) Foreign countries refused to buy American goods due to its passage.
Explanation: Americans tried to raise their taxes on exports to foreign nations to raise money. But it back fired, because as a result the foreign nations also raised their taxes to Americans. This worsened the great depression. So the answer is A.